HX Thermostat Replacement/ York Furnace

[broggybaby]

I am trying to figure out if I can get my new nest to work with this York furnace.  Here is a picture:

I have a A+ which I think is the humidifier and then there is a B-, C, and R.

That's all I have. 

[Patrick_Caezza · Accepted solution]

@broggybaby 

It sounds like it is using a proprietary interface that is not compatible with any Nest thermostat